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paisprezece vaci consuma in 5 zile 840kg de hrana cat vor consuma 10 vaci in 12 zile ?

Răspuns :

840;14=60 con . 1 vaca in5 zile
60:5=12 kg o vaca =1zi
12*10=120  -o vaca in10 zile
120*12=1440 kg hrana 10 vaci in 12 zile

1.cat consuma o vaca pe zi ?

840:5:14=12kg

2.cat consuma 10 vaci in 12 zile?

12kgx10vacix12zile=1440kg